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/*
** ClanLib SDK
** Copyright (c) 1997-2005 The ClanLib Team
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any damages
** arising from the use of this software.
**
** Permission is granted to anyone to use this software for any purpose,
** including commercial applications, and to alter it and redistribute it
** freely, subject to the following restrictions:
**
** 1. The origin of this software must not be misrepresented; you must not
** claim that you wrote the original software. If you use this software
** in a product, an acknowledgment in the product documentation would be
** appreciated but is not required.
** 2. Altered source versions must be plainly marked as such, and must not be
** misrepresented as being the original software.
** 3. This notice may not be removed or altered from any source distribution.
**
** Note: Some of the libraries ClanLib may link to may have additional
** requirements or restrictions.
**
** File Author(s):
**
** Magnus Norddahl
** (if your name is missing here, please add it)
*/
#include "Core/precomp.h"
#include "API/Core/System/timer.h"
#include "API/Core/System/system.h"
CL_Timer::CL_Timer(unsigned long _interval)
: interval(_interval), last_time(0), enabled(false)
{
}
void CL_Timer::keep_alive()
{
if (!enabled)
return;
unsigned long cur = CL_System::get_time();
if (last_time > cur)
last_time = cur; // The counter has overflowed the variable - reset it
while (cur >= last_time + interval)
{
sig_timer()();
last_time += interval;
}
}
void CL_Timer::enable()
{
enabled = true;
last_time = CL_System::get_time();
}
void CL_Timer::disable()
{
enabled = false;
}
bool CL_Timer::is_enabled()
{
return enabled;
}
void CL_Timer::set_interval(unsigned long interval)
{
this->interval = interval;
last_time = CL_System::get_time();
}
unsigned long CL_Timer::get_interval()
{
return interval;
}
CL_Signal_v0 &CL_Timer::sig_timer()
{
return signal_timer;
}
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